Powder-can top.



A. M. COONS.

POWDER CAN TOP.

APPLICATION rum) JAN. 5, 1909.

Patented May 4, 1909.

10 4 fl llllll ll 8 I 2 5 /2 UNITED STATES PATENT OFFICE.

A RTHUR M. COONS, OF WAT-ERBURY, CONNECTICUT, ASSIGNOR TO SCOVILLMANUFACTURING COMPANY, OF \VATERBURY, CONNECTICUT, A CORPORATION OFCONNECTICUT.

POWDER-CAN TOP.

To all whom it may concern:

Be it known that I, ARTHUR M. Coons, a citizen of the United States,residing at \Vaterbury, in the-county of New Haven and State ofConnecticut, have invented a certain new and useful Improvement inPowder- Can Tops, of which the following is a full, clear, and exactdescription.

Powder can tops having caps movable longitudinally on the tops by arotary movement to open and close a lateral discharge opening, have beenvariously constructed, but are not always proof against leakage of thepowder when closed, and in some cases expose the users fingers to thesharp edges of the discharge portion.

The object of the invention is to avoid these objectionable features andto provide an efficient and economical powder can top especiallydesigned for tooth powder.

The invention consists of a powder can top having a cylindricalopen-ended neck, constructed with a spiral groove, and a cap surroundingsaid neck and having a closed end provided with an internal washer whichfits eak-tight over the 0 en end of the neck, said cap having an incined lug to engage the s iral groove of the neck, so that by rotating te cap it will be moved longitudinally of the neck to open and close thedischarge opening; the cap having a lateral discharge opening and thisopening spanned by a bridge to be engaged by the users finger in movingthe cap. This bridge removes the finger from contact with the edge ofthe neck and so prevents injury to the finger from contact with the thinand sharp edge of the neck.

In the accompanying drawings, illustrating the invention, in the severalfigures of which like parts are similarly designated, Figure 1 is a sideelevation of one form of can top embodying the invention, the top beingclosed. Fig. 2 is an elevation at right angles to Fig. 1, showing thetop open for discharge purposes. Fig. 3 is a vertical section with thetop closed. Fig. 4 is a vertical section with the top open, the topbeing turned half way around from Fig. 2. Fig. 5 is a horizontalcross-section of the cap of Figs. 1 to 4 drawn through the center of thedischarge opening. Fig. 6 is a side elevation illustrating another formof the invention, the difference being in the form of bridge. Fig. 7 isa Specification of Letters Patent. Application filed January 6, 1909.Serial No. 470,876.

Patented May 4, 1909.

horizontal section, through the opening, of the cap of Fig. 6.

The can top 1 has a neck 2 secured to it in any suitable way. This neckhas its outer end wholly open. The neck is provided with a spiral groove3 extending part way around it so as to afford top and bottom stops orlimits for the movements of thecap. The cap 4 is enough larger than theneck to fit it closely outside. The top 5 of the cap is closed andprovided inside with the washerfi of pasteboard or other suitablematerial held in place therein by the milled bead 7, and so as to closedown u on the edge of the neck and close the top eak-tight. The cap andneck are connected by a lug 8 set in the spiral groove 3, so that byturning the cap on the neck the cooperation of the lug and groove servesto raise or lower the cap on the neck, depending u on which way the capis turned, and thereby respectively open and close the top. Further,this cooperation of groove and lug limits the extent of up and downmovement; and still further, the groove and lug are so pro ortioned andarranged and the frictional fit oi the cap on the neck is such that theca will stay in any given position, without lialiility to accidentalself displacement.

The discharge opening 9 is arranged in the side of the cap only, and atits upper end, below the washer 6, and so as to be opened and closed bythe turning up and down, respectively, of the cap.

Since the metal of these tops is quite thin, the edge of the 0 on neckwhen exposed in the opening 9 is ikely to pinch or cut the users fingerin operating the cap, and to guard against this a bridge 10 integralwith the cap is sprung across the opening and bowed outwardly therefrom.To reinforce this bridge and obviate sharp edges, its sides may beturned in,'so as to give it a rounded and smooth external surface. Inother words, it may be made convex in cross-section, as shown in detailin Fig. 5. But, as shown in Figs. 6 and 7, the bridge may be flat.

Of course, the lug 8 is formed after the cap is applied to the neck, andthus the connection of the two is permanent.

The form of the discharge opening is immaterial, but it is material thatit be pro vided with the outstanding bridge so as to safeguard the useragainst cutting or pinching the fingers.

The cap may be reinforced and its operation facilitated by providing theadditional milled bead 11.

The neck may be made leak-tight in other Ways than the preferred wayherein shown.

What I claim is:

1. A powder can top, having an open-end ed neck provided with a s iralgroove, a turning cap a plied externa ly to the neck and havinga ugengaging the groove in the neck to obtain a limited up and down movementon the neck, said cap having a discharge opening in its side near itsupper end and a washer in its upper end to close down upon the open endof the neck and close it leak-tight and a finger protecting mediumspanning the discharge opening.

2. A powder can top, having a neck and a cap movably connected therewithand provided with a side discharge 0 ening across which is an outwardlybowed ridge.

3. A powder can top, having a neck and a cap connected therewith andhaving a limited longitudinal movement thereon and provided with alateral discharge opening spanned by a bowed bridge convex incrosssection.

4. A powder can top, having a neck and a cap movably connected therewithand provided with a side discharge opening across which is an outwardlybowed bridge, the neck being 0 en-ended and the cap having a Washer to cose said neck leak-tight.

In testimony whereof I have hereunto set my hand this 31st day ofDecember A. D.

ARTHUR M. COONS. Witnesses HENRY FEEL, G. F. HODGES.

